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Title: Unable to run smart contract method (BUSD) on Android Chrome using Web3.js and WalletConnect

Introduction

As a web developer, I have encountered several challenges when building decentralized applications (dApps) that rely on blockchain technology. A common issue is running smart contract methods using Web3.js and WalletConnect on mobile devices like Android Chrome. In this article, we will explore the reasons behind this limitation and provide a workaround to get our BUSD (Binance Smart Chain) transfer method up and running on Android Chrome.

Why Smart Contract Methods Cannot Be Executed

There are several reasons why smart contract methods might not work as expected when using Web3.js and WalletConnect on Android Chrome:

• Web3.js Library Compatibility: The Web3.js library is designed to work seamlessly with the Ethereum blockchain, which is a different network than Binance Smart Chain (BSC). As a result, some of the features and functionality available in Web3.js might not be compatible or functional on BSC.

• WalletConnect Integration: WalletConnect is an open-source protocol that allows users to connect their wallets to dApps. However, integrating it with Web3.js can be complex, especially when dealing with different blockchain networks.

Workaround: Using localhost wallet and Web3.js

To get our BUSD transfer method working on Android Chrome, we will be using a combination of the following tools:

• Localhost Wallet – We will create a local wallet that mimics the behavior of a Binance Smart Chain wallet. This will allow us to interact with the BSC blockchain from the browser.

• Web3.js – We will use Web3.js to interact with the localhost wallet and execute smart contract methods.

Step by Step Guide

Here is a step-by-step guide to running our BUSD transfer method on Android Chrome:

• Create a Local Wallet – Create a local BSC wallet that supports the ethernaut chain (the Ethereum equivalent of Binance Smart Chain). You can find pre-configured wallets online or use a tool like MetaMask to create one.

• Install Web3.js: Install Web3.js on your localhost using npm: npm install web3.

• Create a new JavaScript file: Create a new file (e.g. bssc-transfer.js) and import the required libraries: import Web3 from 'web3'; import WalletConnect from 'walletconnect';

• Set up localhost wallet connection: Replace the following placeholders with the actual URL of your localhost wallet:

const w3 = new Web3(new Web3.providers.HttpProvider('

• Create smart contract methods: Create a new JavaScript file (e.g. bssc-transfer.js) and define the smart contract methods you want to run.

• Using WalletConnect

  

  : Use the WalletConnect instance to connect your localhost wallet and trigger the smart contract method.

Sample Code

Here is a sample code snippet to get you started:

“`javascript

const w3 = new Web3(new Web3.providers.HttpProvider(‘

// Set up the local wallet connection

const walletUrl = ‘

const walletPrivateKey = ‘your-wallet-private-key’;

// Create smart contract methods

async function transferBusd(amount) {

await w3.eth.sendTransaction({

from: process.env.ACCOUNT,

to: ‘0x…YourRecipientAddress’,

value: amount * 10 // 100 BUSD per transaction

});

}

//Use the WalletConnect instance to trigger the smart contract method

const wallet = new WalletConnect({

providersUrl: walletUrl,

chainId: 42, //BSC mainnet

accounts: [‘…YourWalletAddress’]

});

wallet.on(‘connect’, (chain) => {

console.